Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh doi » thanh loi, thanh moi, thanh do
lang mai » lang dai, lang man, sang mai
lang hai » lang chai, lang thai, lang ha
tu sach » thu sach, su sach, te sach
doi cua » dai cua, hoi cua
xuc ban » duc ban, cuc ban, quoc ban
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
cua duc » cua tuc, cua nuoc, cua quoc
nang ma » tang ma, sang ma, nang cao
ve cac » va cac, vien cac

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((((lang mai) OR (lang hai))) OR (nang ma)) hoi. hieu ve cac xuc ban thanh doi cua duc~.
• Adding a wildcard symbol may retrieve word variants: tu sach y ((((lang mai) or (lang hai))) or (nang ma)) hoi. hieu ve cac xuc ban thanh doi cua duc*.